Saul Stahl

This text covers topics appropriate for a geometry course geared to prospective teachers. It does so rather well. The treatment is axiomatic, although informality is sometimes used (and acknowledged). Stahl presents neutral geometry and shows how it gives rise to both Euclidean geometry and hyperbolic geometry. This is done in the context of presenting and discussing Euclid. In fact, Euclid is Stahl’s starting point.

The topics covered also include spherical geometry, perspective geometry, and some informal topology. Many exercises are provided. The low price of the paperback edition will help students who can ill afford high-priced texts.

A question occurred to me as I read the book: Is Euclid coming back into favour?